So i have my bridesmaids

They don't need to be introduced. It eventually will happen naturally; dress shopping, bachelorette, bridal shower, etc.

If you want to introduce them before the wedding planning activities, you could always ask if they'd all be willing to go to lunch together one day. I made a group chat with my bridal party (just my two older sisters and FSIL), but I only use it to schedule things like our bridesmaid dress appointment. Group chats tend to get on peoples nerves lol, there's always two people that are way more active on it than anyone else.

I had a group text for everyone after I asked them to be bridesmaids. That was mainly so I could give out information to everyone more easily than texting them individually, though. Most of my bridesmaids at least know who each other are, but a lot of them don't live in the same city so I decided to let them introduce themselves to each other that way.

I would start a group chat once everyone has confirmed that they are willing to be a bridesmaid. If it is possible, I would take them out to lunch, and let them meet and get to know each other. If not then they can start to know each other during dress fittings and the showers and what not. That is probably the most you can do, it isn't something you can force.

I gave my MOH everyone's number and she started a group chat with them all! They all live all over so they won't have many chances to meet before the wedding (One in Oklahoma, Louisiana, Arkansas, and then the other 3 in Missouri). I don't have a group chat with them and myself, I imagine that'll come closer to the wedding if I need to send out mass information. If they are all close, I would plan a brunch meeting or something. If not, a group text should be fine.

If location permits, you could do a coffee outing or lunch with everyone. You could also give your MOH everyone’s contact information and let her reach out to them in the way she feels is best.

I made a group chat and asked that everyone said their name in it and added each other's numbers. I also let everyone know who my MOH was. For the most part, all of my bridesmaids knew each other or at least met once at one of my birthdays, or other events I've had. Months later I gave my mom everyone's number so she can let them in on the shower plans. My mom knew all the girls pretty well so she was comfortable making her own group chat, and after that my MOH made a bachelorette chat. So basically I recommend initiating the the first group chat introductions and then chances are separate chats will be formed later on

I started a group chat for mine

I started a group chat with dress information! They didn't formally meet until the bachelorette or bridal shower. Most were in a Facebook group (except two - don't have Facebooks) for the bach party that my MOH created.

I waited until everyone said "yes" to being a bridesmaid. Then I made a group chat but my MOH kind of took control of it and she made a separate one without me so they can plan stuff.

I had a meet and greet sleepover and we had a blast. Everyone met and we went out to a bar and then came home and played a few games. Had breakfast and then everyone went home. I highly suggest this if your girls don't really know each other.

At 6 months plus a little, it is a good time to have a channel for information, whether an email you cc to each person ( not group blast, which gets stuck in spam filters) or a group chat. Just be aware, as people have mentioned above: some people like group chats and some will never, ever respond to one, except to specific info ( you say dress link, they say fine.)
It is not a measure of how much they want to be in your wedding. They simply hate group chats. And some people love to get to know everybody else. And equally as many have absolutely no interest in making new friends. They are each your friends, but are not a team. They may all fine with each other dress shopping, or if they work on a shower. Not hostile. Just that some ( sometimes most or all) will have no interest in dinners, evenings together, group grooming at spas or salons, or sleepovers. Which may come through also if some want to get ready at their own home or room and bath, no taking turns for HMUA, while others want services and group getting ready. Find out what suits your ladies. The last 10-15 years lots of reality TV and movies, magazines, websites, and advertisers have all pushed the team wedding model. But many reject it, for the traditional independent friends who come together for a party or two, a rehearsal, and the wedding. Period. And otherwise, see only the bride, or others, in their usual non wedding mode. Some may be friends. Others not. It only becomes an issue if the bride, MOH or MOB has one thing in mind, and assumes everyone is the same. Just be open to the fact that some people like being part of a group. Some choose their own friends, and may not be interested in your other friends, your sister's, in law's, cousins etc. If your WP was not all friends before hand, don't assume they all like togetherness. When people say yes to being your bridesmaid, ass ume they will get the dress, and if they are local, will try to attend at least one party, may volunteer to help with one, and will try to attend a rehearsal if there is one, and a 8-10 hour wedding day ( including travel) at least. But anything more is an individual choice. You have a plus in being so close to the time of your wedding. Some bride's start with group chats and plans at 15-14 months out, and I have never been in one like that where multiple people sustained interest that long. Good luck. Bridal parties can be lots of fun, or lots of drama.

I started a Facebook group to keep them all updated. I told them if they would like to write a little about themselves on there, they could. Only 1/2 of my MOHs did. I've used it mostly for asking them questions about when would work best for the bachelorette/bridal shower since most of them live in other states. Other than that, I just figured they would meet when it was natural to do so.

I just emailed them the important wedding information (time, date, etc) and they were invited to showers like everyone else.

I stole the idea from my best friend. I loved that she did this, so I thought it was fitting. I started a group chat saying I'm so excited and thankful for all of them to stand by my side, and then asked them each to introduce themselves with how we met and a photo to put faces to names. This gives them each others contract info so they can communicate freely I'm doing a follow up brunch at my house once it gets a little closer